Compare · 3 funds side by side · dividends reinvested

MFSM, MUB and IUSB

Story of the three · Growth5Y$10,000 five years agoDividends reinvested · all three on one scale$10,414MUB · best of the three

02 / 04

MFSM, MUB and IUSB, Ranked

Today

FundFeeYieldYTD1 year3 yrs · yr5 yrs · yrWorst dropVolatilityAssetsAvg rank

MFS Active Exchange Traded Funds Trust - MFS Active Intermediate Muni Bond ETFBonds & Cash · Municipal0.34%3.59%+1.0%+1.8%[…][…]−6.7%3.7%$129M1.8

iShares National Muni Bond ETFBonds & Cash · Municipal0.05%3.27%+0.5%+0.9%+4.5%+0.8%−6.3%3.7%$54.9B1.9

iShares Core Universal USD Bond ETFBonds & Cash · Core aggregate0.06%4.34%+0.1%+0.8%+5.6%+0.3%−4.3%3.9%$50.4B2.0

Rank among the three1st → 3rdFee, drop and volatility: lower ranks higherAvg rank: mean of the 8 ranks · 1 is best

End-of-day Nov 6, 2026 · returns include dividends · since: MFSM 2024 · MUB 2007 · IUSB 2014

Head to Head

Swap sides Versus in desk

Head to Head

MFS Active Exchange Traded Funds Trust - MFS Active Intermediate Muni Bond ETF · $129M[…]

MFSM

MUB

iShares National Muni Bond ETF · $54.9B$10,414

$10,000 five years ago, dividends reinvested

MFSMMeasureMUB

+1.0%Year to dateJan 1 → Nov 6+0.5%

+1.8%1 yearTotal return+0.9%

[…]3 years · per year$10,000 became […] · $11,418+4.5%

[…]5 years · per year$10,000 became […] · $10,414+0.8%

0.34%Expense ratio$34 · $5 a year on $10k · lower is better0.05%

3.59%Trailing 12-mo yield$359 · $327 a year on $10k3.27%

−6.7%Worst dropSmaller is better−6.3%

3.7%VolatilityLower is calmer3.7%

MFSMMUB Winner of the row, in its colourEach row: the bigger of the two fills its side

3–2MFSM wins

End-of-day Nov 6, 2026 · returns include dividends · 3Y and 5Y figures are per-year returns

More Ways to See the Pairs

MFSM vs MUB: Top 5 Holdings

Today

MFSM

1.1%in top 5

MUB

in top 5[…]

MFSMStockMUB

0.6%MUBnot top 5

0.5%VTEBnot top 5

Held in common[…]

End-of-day Nov 6, 2026 · share of each fund

MFSM vs MUB Returns, Every Period

MFSMFSM

+1.8%

past year

MUBiShares

+0.9%

past year

MFSMMUBFaded: behind in that period

2–0MFSM wins

End-of-day Nov 6, 2026 · dividends in · faded = behind in that period

MFSM vs IUSB

YTD

MFSMFSM

+1.0%

IUSBiShares

+0.1%

+1.0%Year to date+0.1%

−6.7%Worst drop · 1Y−4.3%

3.7%Volatility · 1Y3.9%

3.6%Yield4.3%

$129MAssets$50.4B

2–2level

End-of-day Nov 6, 2026 · smaller drop and lower volatility win

Cost, Income and Risk

Fees: MFSM, MUB, IUSB

Today

0.05%lowest, MUB

FundExpense ratioFee$10k

MUB0.05%$5

IUSB0.06%$6

MFSM0.34%$34

End-of-day Nov 6, 2026 · fee on $10,000 a year

Yields: MFSM, MUB, IUSB

4.34%highest, IUSB

FundTrailing yieldYield$10k

IUSB4.34%$434

MFSM3.59%$359

MUB3.27%$327

End-of-day Nov 6, 2026 · trailing 12-month yield

Income After Fees on $10,000

$428most kept, IUSB

IUSB$434 − $6 = $428

MFSM$359 − $34 = $325

MUB$327 − $5 = $322

KeptFee

End-of-day Nov 6, 2026 · yield in dollars minus the fee

Overlap: MFSM, MUB, IUSB

Today

[…]holdings […]

MFSMMUBIUSB

MFSM—[…][…]

MUB[…]—[…]

IUSB[…][…]—

End-of-day Nov 6, 2026 · share held in common · outlined: the pair in versus

Return vs Bumpiness: 3 ETFs

+1.8%MFSM, at 3.7% volatility

MFSMWorst drop−6.7%3.7% vol

MUBWorst drop−6.3%3.7% vol

IUSBWorst drop−4.3%3.9% vol

End-of-day Nov 6, 2026 · up and left is better

Paid More vs Made More

YTD

IUSBMFSM

+0.1%Year to date+1.0%

4.3%Yield3.6%

+0.8%Past year+1.8%

0.06%Fee0.34%

2–2level

End-of-day Nov 6, 2026

Popular Pairs Near These Three

SCHD vs VIG

YTD

SchwabSCHD

+31.4%

VIGVanguard

+12.1%

+31.4%Year to date+12.1%

3.0%Yield1.5%

$120BAssets$109B

2–0SCHD wins

End-of-day Nov 6, 2026

JEPQ vs JEPI

YTD

J.P. MorganJEPQ

+3.2%

JEPIJ.P. Morgan

+5.3%

+3.2%Year to date+5.3%

12.8%Yield8.1%

$42.6BAssets$46.8B

1–1level

End-of-day Nov 6, 2026

SPYM vs SPY

YTD

SPDRSPYM

+8.8%

SPYSPDR

+8.7%

+8.8%Year to date+8.7%

1.1%Yield1.0%

$182BAssets$819B

2–0SPYM wins

End-of-day Nov 6, 2026